Extendable showerhead



FIG. 1 is a perspective view of an extendable showerhead showing our newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing in FIG. 1 is for illustrative purposes only andforms no part of the claimed design.

The ornamental design for an extendable showerhead, as shown anddescribed.